PET-MRI is a combination of positron emission tomography (PET) and magnetic resonance imaging (MRI). This scanner uses two separate tools to accurately diagnose neoplastic changes (tumor formation). Abroad, PET-MRI helps to quickly diagnose many diseases in the field of oncology, cardiology, neurology and infections.
The principle of operation of PET-MRI
The PET module shows the work of internal organs, monitoring the metabolism and movement of a small amount of radioactive substance that is injected intravenously. The most commonly used is fluorodeoxyglucose (FDG), which contains the radioactive element fluorine 18. This substance accumulates in tissues with increased glucose metabolism, which is typical for tumors.
The MRI module uses radio waves and a magnetic field to create more detailed and accurate images than CT scans. MRI scans soft connective tissues, organs and bones and can detect even small tumors. Such a scan also contains detailed information about the accumulation of a radioactive tag.
The combined scanner performs PET and MRI simultaneously, using much lower radiation doses than in PET-CT. This modern diagnostic tool allows you to perform only one scan instead of two separate ones. The price of PET-MRI can be viewed on the website of the clinic that provides this service to patients.
The course of the PET-MRI procedure
Before making an appointment for a PET-MRI scan, the patient receives information about the upcoming procedure in order to prepare properly. As a rule, the patient should come to the test on an empty stomach. First, he receives a questionnaire that contains questions about treatment, concomitant diseases, allergies, and other problems.
The doctor then performs a physical examination and examines the medical history. The patient is weighed and tested for blood glucose levels. Shortly before the procedure, the examinee should empty his bladder. Based on the data obtained, the doctor calculates the exact dosage of the radioactive substance individually for each patient. Then the examinee should lie down in a separate room and stay in a stationary position for about 60 minutes.
After the set time has elapsed, the technician attaches a special system of small tubes to the patient, which allow scanning the entire body. The doctor overseeing the procedure may order additional scans for different parts of the patient's body. At the same time, the final cost of PET-MRI is announced before the start of the process.
Advantages of PET-MRI
When examining the brain, detailed structural information from MRI combined with the metabolic activity obtained from PET facilitates early detection of the disease. The combined image allows you to accurately plan the surgery and understand in time whether the treatment has helped.
For the musculoskeletal system, PET-MRI provides an in-depth assessment of internal soft tissues and bone marrow. These data help to monitor improvements during the prescribed therapy. If treatment does not affect the disease in any way, doctors can promptly change the treatment program. You can find out how much a PET-MRI scan costs during treatment from your doctor.
